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Weather in Leiden for September 2025

Your guide to Leiden weather in September - trends and predictions
  • In general, the average temperature in Leiden at the beginning of September is 23.7 °C. As the month progressed, temperatures tended to significantly cool down, reaching an average of 17.3 °C by the end of September.

  • Leiden sees moderate rainfall in September, averaging 9 rainy days.

  • Is September a good time to visit Leiden? check out the best time to travel to Leiden page.

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Average dry days
21
Dry days
Average rainy days
9
Rainy days
Average snowy days
0
Snow days
Average temperatures
21°/16°
Temperatures
Average wind speed
21 km/h
Avg max wind
Average humidity
71 %
Avg humidity

Leiden in September average weather

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Temperatures trend during September in Leiden

See the weather trend as well as the moving average line
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September weather day by day

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Date Weather Temperatures Rain UV More
1 Sept. Light rain shower
Light rain shower
23° /14° 1.2 mm 5
2 Sept. Mist
Mist
22° /17° 6.5 mm 5
3 Sept. Partly cloudy
Partly cloudy
21° /16° 0.3 mm 6
4 Sept. Sunny
Sunny
21° /15° 0.3 mm 5
5 Sept. Sunny
Sunny
27° /16° 0.3 mm 7
6 Sept. Sunny
Sunny
26° /18° 4.4 mm 6
7 Sept. Sunny
Sunny
26° /18° 0.2 mm 6
8 Sept. Sunny
Sunny
23° /17° 1.2 mm 6
9 Sept. Cloudy
Cloudy
21° /17° 1.5 mm 5
10 Sept. Sunny
Sunny
23° /16° 4.8 mm 6
11 Sept. Patchy rain possible
Patchy rain possible
19° /15° 6.1 mm 4
12 Sept. Partly cloudy
Partly cloudy
17° /13° 8.9 mm 5
13 Sept. Cloudy
Cloudy
17° /12° 3 mm 4
14 Sept. Sunny
Sunny
17° /12° 0.1 mm 5
15 Sept. Partly cloudy
Partly cloudy
20° /13° 0 mm 6
16 Sept. Overcast
Overcast
20° /15° 0.6 mm 5
17 Sept. Overcast
Overcast
21° /15° 0 mm 5
18 Sept. Light rain shower
Light rain shower
21° /16° 5.1 mm 6
19 Sept. Light rain shower
Light rain shower
21° /15° 3.9 mm 5
20 Sept. Patchy rain possible
Patchy rain possible
21° /15° 0.6 mm 6
21 Sept. Light rain shower
Light rain shower
21° /14° 10.1 mm 6
22 Sept. Light rain shower
Light rain shower
19° /14° 3.5 mm 5
23 Sept. Light rain shower
Light rain shower
17° /14° 8 mm 4
24 Sept. Patchy rain possible
Patchy rain possible
18° /12° 1.1 mm 4
25 Sept. Patchy rain possible
Patchy rain possible
17° /13° 6 mm 4
26 Sept. Overcast
Overcast
19° /14° 10.8 mm 5
27 Sept. Partly cloudy
Partly cloudy
18° /14° 12.6 mm 5
28 Sept. Patchy rain possible
Patchy rain possible
16° /13° 2 mm 4
29 Sept. Light rain shower
Light rain shower
17° /12° 0.3 mm 4
30 Sept. Cloudy
Cloudy
16° /11° 7.4 mm 4
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Important Notice
Our weather forecast for Leiden in September is based on the analysis of historical data rather than real-time forecast models. While this provides a general overview, weather conditions can change. We recommend that you check the Leiden forecast closer to your planned date for the most up-to-date weather information.

Leiden in September - FAQ

What are the expected maximum and minimum temperatures in Leiden during September?
During September, expect a variety of temperatures with highs around 21° and lows near 16°, suitable for diverse activities and preferences.
How much rainfall should be expected in Leiden during September?
Moderate rainfall is anticipated in Leiden during September, with a total of 77.8 mm spread over approximately 9 days. Considering plans for rainy days is advisable.
What are the typical wind conditions in Leiden during September?
The average wind speed in Leiden during September is 21 km/h, suggesting breezy to windy conditions, depending on your activities.

What to pack to Leiden in September?

As you prepare for your trip to Leiden in September, it's important to consider the typical weather patterns for the time of year. Below is a carefully tailored packing list to ensure that your time in Leiden, during September, is comfortable and enjoyable, regardless of the weather conditions.

  • Clothing
    • Layered Clothing: Light sweaters, long-sleeve shirts, light jackets, and comfortable pants
    • Rain Gear: Lightweight, waterproof clothing
  • Footwear
    • Waterproof Shoes
  • Accessories
    • Sunglasses: For sun protection
    • Sun Hats: Wide-brimmed hats for sun protection in warm weather
    • Umbrellas/Raincoats: For rainy days

September rainfall patterns in Leiden

Explore the daily rainfall trends and prepare for Leidens September weather 💧

UV exposure in Leiden during September

Stay informed about UV levels for safe outdoor activities throughout the month of September ☀️

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Location coordinates Where is Leiden?

Get accurate weather forecasts for Leiden, located at latitude 52.158 and longitude 4.493. Stay updated with localized weather information tailored for Leiden.

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